Correct, please refer to the help GS. Keyboard Shortcuts
You can try "CTRL+1", "CTRL+2", "CTRL+3", "CTRL+4" for different views. Use "CTRL+0" to reset. Try and let us know if this is something you are looking for.
I meant "SHIFT+" key combination. It is much faster. Quick command require 3 steps, space button, then select the command, then esc. button.
Are you aware of the 'Quick Command' popup? I.e. on the graphic press the spacebar. This has some sample commands, but you can customise by clicking on the expansion icon in the very bottom right of the popup. This allows you to add/remove any command including the Display Whole Structure. Or do you mean the rendered 3D view. Again that icon can be added to the popup in the same way.